Apple has gotten into another patent lawsuit, this time with a National Cheng Kung University in Taiwan, which claims the Siri speech recognition system infringes two United States patents it was granted in 2007 and 2010 relating to voice-to-text technology.

The suit was filed in the United States District Court for the Eastern District of Texas, on Friday, according to Reuters newswire.

"We filed that lawsuit in the Texas court because it processes faster and its rulings are usually in favor of patent owners and the compensations are usually higher," said Yama Chen, legal manager of National Cheng Kung in the article Monday.

According to the report, he declined to disclose the amount of compensation being sought but said any calculation would be based on Apple's U.S. sales of devices that use Siri.

Chen added that the university was also examing whether smartphone voice recognition systems used by Google and Microsoft have also violated its patents.

The news comes amid Apple's onging legal spat with companies including Samsung, largely over the design of the iPhone and iPad. Both companies have claimed its patents have been infringed upon, with Apple seeking over $2.5 billion in damages.

Loves caption contests, leisurely strolls along supermarket aisles and watching How It's Made. Ryan has covered finance, politics, tech and sports for TV, radio and print. He is also co-author of best seller "Profit from the Panic". Ryan is an editor at ZDNet's Asia/Singapore office.